Table 3 The latency of SEPs (P40-N45) at different points of time (mean ± SD)

Latency of left lower limb (ms)

C(n = 27)

41.1 ± 2.9

41.1 ± 2.6

41.3 ± 3.1

41.3 ± 2.8

DL(n = 24)

42.0 ± 4.0

42.0 ± 3.4

42.1 ± 4.0

41.6 ± 3.7

DH(n = 28)

41.3 ± 4.4

41.7 ± 4.0

42.0 ± 3.9

41.3 ± 2.7

P

0.660

0.603

0.673

0.921

Latency of right lower limb (ms)

C(n = 27)

41.1 ± 3.7

40.3 ± 3.5

40.8 ± 3.6

41.2 ± 3.5

DL(n = 24)

42.2 ± 4.6

42.5 ± 5.2

42.3 ± 4.7

42.4 ± 4.5

DH(n = 28)

40.1 ± 4.0

40.5 ± 4.0

40.6 ± 3.9

40.6 ± 3.4

P

0.191

0.148

0.292

0.255